package org.example.advice;

import lombok.extern.slf4j.Slf4j;
import org.example.dto.ApiResponse;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;
@ControllerAdvice
@Slf4j
public class ApiResponseAdvice implements ResponseBodyAdvice<Object> {

    @Override
    public boolean supports(MethodParameter returnType, Class<? extends HttpMessageConverter<?>> converterType) {
        boolean flag = returnType.hasMethodAnnotation(ResponseBody.class) &&
                MappingJackson2HttpMessageConverter.class.isAssignableFrom(converterType);
        return flag;
    }

    @Override
    public Object beforeBodyWrite(Object body, MethodParameter returnType, MediaType selectedContentType, Class<? extends HttpMessageConverter<?>> selectedConverterType, ServerHttpRequest request, ServerHttpResponse response) {
        if(body==null){
            return new ApiResponse<>(false, null, "No Content");
        }
        return new ApiResponse<>(true, body, "Success");
    }
}
